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Adding action for switching of a namespace on k8s cluster
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enterprise/cloud.oracle/src/org/netbeans/modules/cloud/oracle/assets/KubernetesUtils.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| package org.netbeans.modules.cloud.oracle.assets; | ||
|
|
||
| import com.oracle.bmc.Region; | ||
| import com.oracle.bmc.http.Priorities; | ||
| import com.oracle.bmc.http.client.HttpClient; | ||
| import com.oracle.bmc.http.client.HttpRequest; | ||
| import com.oracle.bmc.http.client.Method; | ||
| import com.oracle.bmc.http.client.jersey.JerseyHttpProvider; | ||
| import com.oracle.bmc.http.signing.RequestSigningFilter; | ||
| import io.fabric8.kubernetes.client.Config; | ||
| import io.fabric8.kubernetes.client.KubernetesClient; | ||
| import io.fabric8.kubernetes.client.KubernetesClientBuilder; | ||
| import java.io.UnsupportedEncodingException; | ||
| import java.net.URI; | ||
| import java.net.URISyntaxException; | ||
| import java.net.URLEncoder; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.util.Base64; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.function.Consumer; | ||
| import org.netbeans.modules.cloud.oracle.OCIManager; | ||
| import org.netbeans.modules.cloud.oracle.OCIProfile; | ||
| import org.netbeans.modules.cloud.oracle.compute.ClusterItem; | ||
| import org.openide.util.Exceptions; | ||
| import org.snakeyaml.engine.v2.api.Dump; | ||
| import org.snakeyaml.engine.v2.api.DumpSettings; | ||
| import org.snakeyaml.engine.v2.api.Load; | ||
| import org.snakeyaml.engine.v2.api.LoadSettings; | ||
|
|
||
| /** | ||
| * | ||
| * @author Jan Horvath | ||
| */ | ||
| public class KubernetesUtils { | ||
|
|
||
| static void runWithClient(ClusterItem cluster, Consumer<KubernetesClient> consumer) { | ||
| if (cluster.getConfig() == null) { | ||
| cluster.update(); | ||
| } | ||
| if (cluster.getConfig() == null) { | ||
| throw new RuntimeException("Invalid cluster configuration"); | ||
| } | ||
| Config config = prepareConfig(cluster.getConfig(), cluster); | ||
| try (KubernetesClient client = new KubernetesClientBuilder().withConfig(config).build();) { | ||
| consumer.accept(client); | ||
| } catch (Exception e) { | ||
| Exceptions.printStackTrace(e); | ||
| } | ||
| } | ||
|
|
||
| private static Config prepareConfig(String content, ClusterItem cluster) { | ||
| String token = getBearerToken(cluster); | ||
| LoadSettings settings = LoadSettings.builder().build(); | ||
| Load load = new Load(settings); | ||
| Map<String, Object> data = (Map<String, Object>) load.loadFromString(content); | ||
|
|
||
| List<Map<String, Object>> users = (List<Map<String, Object>>) data.get("users"); //NOI18N | ||
| if (users == null) { | ||
| throw new RuntimeException("Invalid cluster configuration"); | ||
| } | ||
| Map exec = null; | ||
| for (Map<String, Object> userEntry : users) { | ||
| Map<String, Object> user = (Map<String, Object>) userEntry.get("user"); //NOI18N | ||
| if (user != null && user.containsKey("exec")) { //NOI18N | ||
| exec = (Map) user.remove("exec"); //NOI18N | ||
| } | ||
| } | ||
| String clusterId = null; | ||
| if (exec != null && "oci".equals(exec.get("command"))) { //NOI18N | ||
| List commandArgs = (List) exec.get("args"); //NOI18N | ||
| boolean clusterIdNext = false; | ||
| for (Object arg : commandArgs) { | ||
| if ("--cluster-id".equals(arg)) { | ||
| clusterIdNext = true; | ||
| continue; | ||
| } | ||
| if (clusterIdNext) { | ||
| clusterId = (String) arg; | ||
| break; | ||
| } | ||
|
|
||
| } | ||
| } | ||
| if (!cluster.getKey().getValue().equals(clusterId)) { | ||
| throw new RuntimeException("Failed to read cluster config"); //NOI18N | ||
| } | ||
| Dump dump = new Dump(DumpSettings.builder().build()); | ||
| String noExec = dump.dumpToString(data); | ||
| Config config = Config.fromKubeconfig(noExec); | ||
| config.setOauthToken(token); | ||
| return config; | ||
| } | ||
|
|
||
| private static String getBearerToken(ClusterItem cluster) { | ||
| try { | ||
| OCIProfile profile = OCIManager.getDefault().getActiveProfile(cluster); | ||
| Region region = Region.fromRegionCodeOrId(cluster.getRegionCode()); | ||
| URI uri = new URI(String.format( | ||
| "https://containerengine.%s.oraclecloud.com/cluster_request/%s", //NOI18N | ||
| region.getRegionId(), cluster.getKey().getValue() | ||
| )); | ||
|
|
||
| RequestSigningFilter requestSigningFilter | ||
| = RequestSigningFilter.fromAuthProvider(profile.getAuthenticationProvider()); | ||
|
|
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| HttpClient client = JerseyHttpProvider.getInstance().newBuilder() | ||
| .registerRequestInterceptor(Priorities.AUTHENTICATION, requestSigningFilter) | ||
| .baseUri(uri).build(); | ||
|
|
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| HttpRequest request = client.createRequest(Method.GET); | ||
|
|
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| request.execute().toCompletableFuture(); | ||
| List<String> tokenUrlList = request.headers().get("authorization"); //NOI18N | ||
| String authorization = URLEncoder.encode(tokenUrlList.get(0), "UTF-8"); //NOI18N | ||
| List<String> dateList = request.headers().get("date"); //NOI18N | ||
| String date = URLEncoder.encode(dateList.get(0), "UTF-8"); //NOI18N | ||
| String baseString = String.format("%s?authorization=%s&date=%s", uri.toASCIIString(), authorization, date); //NOI18N | ||
| byte[] urlBytes = baseString.getBytes(StandardCharsets.UTF_8); | ||
| return Base64.getUrlEncoder().encodeToString(urlBytes); | ||
| } catch (URISyntaxException | UnsupportedEncodingException ex) { | ||
| throw new RuntimeException(ex); | ||
| } | ||
| } | ||
| } |
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